Portable vacuum-cleaner.



G. W. KELSBY.

PORTABLE VACUUM CLEANER.

PP 0A R A LI TIO FILED DEC 14 1908 Patented Dec. 13,

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PORTABLE VACUUM CLEANER.

APPLICATION FILED D30. 14, 1908. 978, 1 67. Patented Dec. 13, 1910.

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CADWALLADER w. KELSEY, or PHILADELPHIA, PENNSYLVANIA.

PORTABLE VACUUM-CLEANER.

Specification of Letters Patent.

Patented Dec. 13, 1910.

- Application filed December 14, 1908. Serial No. 467,391.

To all'whom t't may concern: Be it known that I, CADWALLAD'ER W. KnLsnY, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and'useful Improvements in Portable Vacuum-Cleaners, whereof the following is a specification, reference being had to the accompanying draw- 1n Idy invention relates to portable pneumatic cleaners, and particu arly to thosewhich are electrically actuated, the essential parts of such cleaners being the electric motor, the pneumatics and their actuating connections, in combination with a filtering apparatus, the exhaust side of which is connected by a tube fitted with a suction aperture suitable for cleaning purposes.

It is the object of' my invention to provide a compact arrangement of the essential parts of a portable cleaner, wherein the vacuum-creating means, the device for operating the same and the filtering compartment, are all located within a single receptacle that may bereadily moved from place to place.

An additional valuable function of my invention is found in the removable and rotatable filtering compartment which is capable of operating longer without the necessity of renewal of filtering medlum, and of being more readily emptied than those heretofore constructed .In the drawings, Fi re I, is a perspective view in its assemble form, of a vacuum cleaner constructed according to my invention. Fig. II, is a plan view of the containing box with its cover removed. Fig. III,

is a central longitudinal sectional view through the containing box taken on the line III, III, in Fig. II. Fig. IV, is a crosssectional view through a pair of pumpin bellows taken on the line IV, IV, in Fig. I

The containing box 1, is preferably rectangular and made of sheet metal, w1th its upper edges beaded as indicated at 2. It 1s mounted upon a wooden frame 3, having, rollers 4, by means. of which the device may be readily moved about. It is provided with a cover 5, and also with gripping handles 6, and 7, at opposite ends to facilitate its being carried from lace to place. The containmg box isdivi ed transversely (except for a short distance at the bottom), by 5 paired partitions, the space 10, between which is horizontally divided by shelf 56, so as to form a vacuum chamber 50, and an exhaust chamber 55, the partitions serving incidentally to brace the containing box, and to afford a support for two vertical pairs 50 of co-acting exhaust bellows 11, 12, and 13, 14, respectively, the components of each pair beln mounted upon opposite sides of the. pagtltions, and all being hung at their upper on s.

The oscillating walls 15, and 17, of the bellows 11, and 13, are provided at their lower ends with depending pivot fingers 19, and 21, which are respectively coupled by means of links 23, and 24, to similar fingers 70, 20, and 22, de ending from the lower ends of the oscillating arms 16, and 18, of the bellows 12, and 14. By this method of construction and mounting the weight of the movable walls of the bellows of each pair counterbalance each other, so that they require for their actuation no more energy than that actually required for the creation of the suction they are designed to produce. The walls 15, and 17, of the bellows 11, and 13, are also provided with ivot blocks 25, and 26, which are respectively connected by means of links 27, and 28, w1th crank arms 29, and 30, on the shaft 31, which is supported in a bracket 32, extending from the base of an electric motor 33. The said cranks 29, and 30, are 180 degrees apart, and are located on opposite ends of the shaft 31, which also carries a worm wheel 35, driven by a worm 36, secured on the shaft 37, of the said motor 33, whose connections terminate in a socket 38, in the end wall 39 of the containing box 1. By this means, oscillation is imparted to the paired swinging walls of the exhausting bellows, so that the two pairs are oppositely operated thereby balancing the work of the shaft 31.

Each bellows communicates with the vacuum chamber 50, through circular a ertures 51, piercing their fixed walls. T1656 apertures are provided with flap valves 52, which are opened and closed according to the action of ellows containing them. The bellows also communicate by means of apertures 53, with the exhaust chamber 55, which is open to the'atmosphere at its bottom. The apertures 53, are also provided with fiap valves 54. By reason of the vertical portion of these chambers and the corresponding parallelism of the bellows, all of' closed, due to the suction created thereby.

When the'bellows are collapsed, the pressure setup in' them closes the valves 52, and

opens the valves 54, so that communication is established .with the atmosphere through the ports 53, and chamber By the above described action of-thebell'ows, a constant vacuum is maintained within the chamber 50, of the chest 10.

A dust collecting cylinder 60, is rotatably received within an annular opening 61, in

the front end 62, of the containing box-1.

At its inner end, the said cylinder 60, is provided with a head 63, which 15 detachably secured to an internal flange 64, on the said cylinder 60, by means of the winged nuts 65,

on the studs 66, which project from the said flange 64. The joint thus formed is rendered absolutelyair tight by means of an interposed rubber gasket.-

A filtering partition in the shape of a skeleton cylinder 68, preferably made of wire gauze, is carried by the head 63, co-axially within the cylinder 60, and is surrounded by a dust filtering medium or fabric 69,

which retains any dust, and yet allows air to be sucked therethrough. The head 63,

also carries a boss70, which receives the end of the connecting tube 71, secured to the chest 10, and connecting it with the interior of the filtering cylinder.

' The outer hemispherical end 72, of the cylinder 60, comprises a neck .7 3, having a gripping handle 75, by means of which, the said cylinder 60, may be rotated and removed,

which is freely permitted, its connection with the tube 71, being only frictional. After removing the cylinder, the head 63, may be detached and the contents of the cylinder 60, disposed of. a

A flexible connecting tube 80,-is provided with metal tips, one of which is received in the neck 73, of the dust collecting cylinder 60, and the other in the end of a metallic tubular handle 82. The said handle 82, is made in' two sections 83, and 84, and sup ports at its lower end a slotted suction clean ing implement 85, of any well known construction. The flexible tube 80, when not in use, may be coiled up and stored in the containing box 1, in the space between the chest 10, and its rear end wall 39, as shown in dotted lines in Fig. III. The tubular metallic handle 82, may also be disjointed and placed within the box 1, on each side of the dust cylinder 60, as shown in dotted lines in Figs. II, and III. I

.The operation of my invention is as fol- I lows :The apparatus is set up as shown in Fig. I, and when the motor 31, is set inoperation,iits motion imparted. to the bellows 11, to. 1.4, causesa vacuum to be constantly maintained within the chamber 50, of the chest 10. Asthe cleaning implement 85, is progressed over the carpet or other surface to be cleaned, a mixture of dust and'air is sucked up through the handle 82, into the,

cylinder 60. The dust'is then filtered from the air and retained within the said cylinder 60, bymeans of the filtering material 69, while the filtered air is drawn by the I 'vacuum into the chamber 50, and constantly pumped out of the exhaust. When the cleaning has been finished the cylinder 60, may be withdrawn from the containing box 1, and after detachin its head 63, its conthe operation the dust collecting cylinder may be rotated at intervals so as to, brin all portions of the filtering cylinder 69, at times to the bottom where the larger part of the tents can then be rea ily removed. During filtering action takes place, thus distributing'the filtering face of said cylinder.

Where I speak in this specification of creating a vacuum, it will be understood that I am referring to the partial vacuum which is customarily used to create suction in vacuum cleaners.

Having thus described my invention, I claim work over the entire sur- 1. A Vacuum cleaner comprising a receptacle having an opening in one of the outer walls thereof, a Vacuum chamber, a dust collecting receptacle adapted to be inserted in said opening and to close the same, and means for connecting said dust collecting re ceptacle with the vacuum chamber.

2. A vacuum cleaning apparatus, comprising a receptacle having an opening in one wall thereof, a vacuum chamber, a tube extending into said vacuum chamber, a dustcollecting cylinder rotatably and removably secured in said opening and extending into said receptacle, said cylinder having a con necting boss detachably connected with said tube.

3. A vacuum cleaning apparatus comprising a. rectangular receptacle, spaced walls forming a vacuum chamber, and located parallel with one of the walls of the receptacle, which wall has an opening therein, a dust collecting receptacle removv ably secured in said opening and closing the same and extending into said rectangular In testimony whereof, I haye hereunto receptacle, a tube carrled by one of sa cl signed my name. at Phlladelplna, Pennsyl- 1C spaced walls and connectlng wlth sa1d vama, tlns fifth day of December 1908;

' vacuum chamber said dust collectin recep- 1 v v' ,1 tacle having a iorojecting boss detachably OADVVALLADLR RELSEL connected with said tube, and means for Witnesses: v withdrawing the dust collecting receptacle A. F. WILKINS,

from said rectangular receptacle. JAS. P. ROOME. 

